Displacement node doesn't seem to work
If you are attempting to use simple "fake" displacement (basically bumpiness that is affected by lighting, but is not visible in silhouette), you've already got it working. If you are attempting to use "true" displacement from the displacement node in the material, this will not work in Evee. Use Cycles or the displacement modifier. 

Also, even in Cycles, the results of true displacement from the material displacement node do not affect the mesh in edit mode view: it is computed at render time.